Momoko is a former child actress turned idol with a haughty and superior attitude. During her past experiences, Momoko was exposed to the darker side of the film industry and her parents started to fight often, which would cause Momoko to develop trust issues towards other people. While at first hesitant to bond with anyone at 765Pro, Momoko eventually opens up to the others, primarily Iku, and starts to truly enjoy her time as an idol.​

Made her live event debut at the Live Theater Performance 12 event. The first im@s album she bought was Overmaster and she was able to cover the song at the Nagoya venue of the ML 3rd tour. She has qualifications in flower arrangement, a third rank English qualification in addition to a second rank secretary skill qualification.